Abstract
Infrared (IR) spectroscopy was employed for a thorough study of the CiCs(SiI) defect formed in neutron-irradiated carbon-doped Czochralski silicon material. Its IR signals at 987 and 993cm−1, as well as the thermal evolution of the defect were examined and discussed. Based on a previously suggested structure model of this defect its local vibrational mode frequencies were calculated. The estimated values lie very close to the experimentally detected frequencies at 987 and 993cm−1, supporting their previous assignment to the CiCs(SiI) defect. The decay of the center in the spectra was found to be governed by a second order kinetics, with an activation energy around 1.27eV.
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